I have gone two rounds of sending them back. Each batch is the same story. Like I posted above, I even tried re-crimping them myself. I've since given up on the .357 sig in a defensive carry capacity. I have lots of other options....and my G-29 has recently been getting the nod.
I know that BB, and DT both use Starline Brass. Not sure if it is a brass issue, I just don't have the time or the patience to address it anymore.